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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 374458Generated: October 29, 2026

Benzyl Bromide → 3-[3-(2,3-dihydro-1,3-dioxo-1H-isoindol-2-yl)propyl]-1-(phenylmethyl)pyridinium bromide

https://huagongshe.com/reaction/374458

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzyl BromideHCID 7498—
Reactant2-[3-(Pyridin-3-yl)propyl]-1H-isoindole-1,3(2H)-dioneHCID 13557552—
SolventIsopropanolHCID 3776—
Product3-[3-(2,3-dihydro-1,3-dioxo-1H-isoindol-2-yl)propyl]-1-(phenylmethyl)pyridinium bromideHCID 1899712570.4%

Reaction Steps

A mixture of 2.00 g (7.5 moles) of 2-[3-(3-pyridinyl) propyl]-1H-isoindole-1,3 (2H) -dione, 8 mL of 2-propanol, and 1.71 g (10 mmoles) of benzyl bromide was heated under reflux for 1 hour. The solution was cooled to 0°, and the precipitated product was collected by suction filtration, washed with cold ethyl ether, and dried to afford 3.08 g of 3-[3-(2,3-dihydro-1,3-dioxo-1H-isoindol-2-yl)propyl]-1-(phenylmethyl)pyridinium bromide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05480892
Source datasetuspto-grants-1996_01
ORD IDord-b50cf8db69624eb288cf5a4a07697aee
Source noteuspto-grants-1996_01